an fbi team is expected to arrive soon, and reinforcement, about 50 marines have already arrived at the u.s. embassy in tripoli. >> all right, richard engel, back in tahrir square, cairo tonight. thank you, richard, we'll have more on this anti-islam film in just a second. >>> but first, we're learning more tonight about the other americans killed in the raid on our consulate that took the life of the u.s. ambassador. two of them were former navy seals who were working on a private security detail, one just identified today as tyrone woods, a 22-year military veteran, a father of two. the other, glen doherty, from winchester, massachusetts, also remembered by his family and friends today for his spirit. nbc's katy tur has more. >> reporter: a former navy seal, 42-year-old glenn doherty was working in libya as a private security contractor when the group of militants stormed the complex. today at his mother's home in woburn, a stream of mourners filed in all day. doherty's sister, kate quigley, offered a statement about her brother. >> glenn lived his life to the fullest. he was my broth